Q2. In a triangle ABC, side AB has length 10 cm, side AC has length 5 cm, and angle BAC = x where is
measured in degrees. The area of triangle ABC is 15cm
(a) Find the two possible values of cos x
(4)
Given that BC is the longest side of the triangle,
(b) find the exact length of BC.
(2)
(Total for question = 6 marks)

-14

step-by-step explanation:

2x2 – 2(x+4)

=2x2-2（5+4）

=4-2×9

=4-18

=-14

answer: 1,380

step-by-step explanation:

1: you turn %15 into a decimal by moving the decimal point two places to the left.

2: and then you multiply .15 by 1,200 , which will get you 180.00

3: from there you will add 180 to 1,200

4: which will get you 1,380

hope it *im kind of slow so idk if my answer is right*

correct answer is option b.

step-by-step explanation:

the true statement about geometric figure is option b that is one line can be drawn through all three points.

if three points are on the same plane, they can be connected by a line.